FitFlop LULU GLITTER Womens Sliders Midnight Navy. These sandals feature an upper material of Polyurethane, a microfibre lining, and a rubber sole. They are designed as slip-on with a round toe shape and regular width. The sandals offer slip-resistant and comfort features. Heel height is flat, under 2.5cm. Put a sparkle in your step with this chunky-glitter smothered version of FitFlop's Lulu sandals.